How many logical drives in 3 physical drive Raid 5
Posted on 2008-11-18
Installing Suse Linux on Proliant ML150 with (3) 73 gig hard drives. Just realized it is best to allow the OS run on one logical drive and the NSS stuff run on another. In order to have 2 logical drives both running Raid 5, I'm assuming I would need at least 6 hard drives, is that correct? I have ordered two more so will have 5 but initially thought of doing 2 at Raid 1 and then the other 3 at Raid 5, but just wanted to make sure. Is there better performance with allowing everything to exist on two Raid 5 logical drives as opposed to one logical Raid 1 and one logical Raid 5. We are using 15k SAS drives so the performance should be pretty good. Need to get an idea fast to order another drive or just wait for the two to finish the installation.